1. Start by loading your .pot/.po file.

2. Wait for the loading to complete and edit in the right editing area. Before editing, select 'Source Text Language' and 'Translated Text Language' above the editing area. Once you've made your selections, you're ready to work on your translations. You can translate line by line using the translation engine.

3. If you think the results given by the translation engine are inappropriate, you can also modify them manually. When all is done, click 'Download current .pot/ .po file' to download.